Oil-burning incinerator



Oct. 6, 1964 M. RESEK 3,151,581

OIL-BURNING INCINERATOR Filed July 19, 1962 4 Sheets-Sheet 1 1L .6 2 i as i k 8 :3 1B 9o jg 51a INVENTOR.

MARC RESEK Oct. 6, 1964 REsEK 3,151,581

OIL-BURNING INCINERATOR Filed July 19, 1962 4 Sheets-Sheet 2 INVEN TOR.

fl 4 MARC RESEK ATTOR EY Oct. 6, 1964 M. RESEK OIL-BURNING INCINERATOR 4 Sheets-Sheet 3 Filed July 19, 1962 INVENTOR.

MARC RESEK ATTORNEY Oct. 6, 1964 MY RESEK 3,151,581

OIL-BURNING INCINERATOR Filed July 19, 1962 4 Sheets-Sheet 4 INV EN TOR.

ATTORN 3,151,531 @lL- URNING ENCINERATGR Marc Resek, 3210 Warrensville Center Road, Shaker Heights 22, Ghio 13 illaims. (Cl. 1 -8) This invention relates to incinerators, more specifically to an oil-burning incinerator for home use.

incinerators burning gas are commonly installed in homes, particularly in such cities as have low cost gas available, but the need for incinerators in homes is even greater in outlying and rural areas, where gas either is not available or is high priced. in these places garbage and rubbish collection is either non-existent or infrequent, water and sewage facilities inadequate for the operation of garbage grinders, and while trash burners are often used, they create objectionable odors and do not consume garbage.

Thus a moderately priced incinerator using oil as fuel would find a ready market in such areas. While attempts to produce an oil-burning incinerator have been made in the past, the equipment, if capable of providing satisfactory performance, has been costly to produce, hence priced too high for volume sales. So far as can be learned, no oil-burning incinerator for home use is on the market today.

It is therefore the primary object of this invention to provide an incinerator for use in the home, employing oil as fuel and incorporating a simple vaporizing burner without the usual float-controlled constant level valve and without need for a timing device, safety pilot and other controls such as are usually incorporated into a gas incinerator and which not only add materially to its cost but are a source of operational failures and service problems.

Unless an incinerator is smokeless and odorless, it is not satisfactory, and gas incinerators as now made usually include and afterburner to eliminate smoke and odor from the products of combustion. It is a further object of this invention to provide in an oil-burning incinerator a structure whereby the oil flame serves to heat and dry moist waste material, to ignite combustible Waste and to consume smoke and odor emitted by the burning waste, allowing only clean combustion products to be emitted from the flue. This is accomplished by locating an oil combustion chamber within the waste container arid in communication therewith through an opening in the wall of the oil combustion chamber, with means for diverting part of the flame from the burning oil against the waste material and means for causing smoke and combustion products produced by the burning waste to pass through the oil flame, meeting air entering through a draft regulator at the entrance to the flue pipe where combustion is completed.

It is a further object of the invention to provide a simple fuel feed to the oil burner which prevents the fuel level from exceeding a safe maximum height in the burner bowl, the burner supplying heat at a fixed rate for a predetermined period without need for a timer, float control, safety shutoff or metering valve. A fuel supply tank, a measuring tank and a level tank are connected by a three-way valve, so that when the valve plug is turne to one position fuel will fiow from the supply tank to fill the measuring tank, while when the valve plug is turned to a second position, the measured quantity of fuel will flow from the measuring tank to the level tank which is a shallow tank in communication with the burner bowl. The fuel in the burner can then be ignited and will burn at a rate controlled by the air openings into the burner until the measured quantity has been consumed.

ice

The level tank has a capacity more than twice that of the measuring tank, so that either one or two charges from the measuring tank can be placed in the level tank, thus providing an option of two dilferent burning periods depending on the amount and nature of the waste material to be incinerated. With either one or two charges from the measuring tank, the level in the burner bowl will be below the maximum which is safe. To prevent more than two charges being put into the level tank, an overflow is provided which will carry oft any excess.

A single charge from the measuring tank will burn for about one hour which will consume a normal amount of usual waste material, while a double charge burning for about two hours will take care of a full load of damp material.

A further object of the invention is to provide an oilburning incinerator which is easy to operate, having a charging door and a lighting door both on top, a fuel valve handle and a grate dump handle on the front and a large ash receptacle provided with a front handle, the dump grate being designed to facfiitate removal of material which will not burn, such as cans and bottles.

Still further objects are to provide an incinerator which will not be damaged by the intense heat of the combustion of some types of waste material, which is designed to allow for expansion and contraction of the parts due to temperature chan es, and in which the oil burner will not become clogged by material to be incinerated.

Other objects and advantages of the invention will appear from the following description of a typical embodiment, in which:

FIGURE 1 is a perspective view of an oil-burning incinerator incorporating the invention, shown connected to a fuel supply tank and to a vent flue;

FIGURE 2 is a view of the lower rear corner of the incinerator shown in FIGURE 1, taken in the direction of the arrows on line 2-2 of FIGURE 4, showing the three-way valve in section, the valve plug being positioned to connect the fuel supply tank to the measuring tank;

FIGURE 3 is a sectional view of the three-way valve showing the valve in position to connect the fuel measuring tank to the fuel level tank;

FIGURE 4 is a vertical sectional view of the incinerator from front to rear, taken on line 4-4 in FIG- URE 6;

FIGURE 5 is a front elevational view of the incinerator with parts broken away to shown the interior construction, partly in section on line 55 of FIGURE 6;

FIGURE 6 is a horizontal sectional view of the incinerator taken on line 66 of FIGURE 4; and

FIGURE 7 is a fragmentary horizontal sectional view through the draft regulator box, taken on line 77 of FIGURE 4.

As shown in the drawings, the incinerator is indicated generally at it the fuel supply tank at 12 and the flue pipe at 14. Fuel supply tank 12 is a gravity tank of any desired capacity and shape having the usual filling opening closed by a vented cover 15 and supported so that it is above a fuel measuring tank 16 and a fuel level tank 13.

A three-way valve 20 is connected through a pipe 22 to the supply tank 12, through a pipe 24 to the fuel measuring tank 16 and through a pipe 26 to the level tank 18. The valve is operated by means of a handle 28 which turns a rod 29 attached to the valve plug 30. A shutoff valve 31 is provided in pipe 22.

A vent tube 32 rises from the top of measuring tank 16 to a point above the top of supply tank 12. An overflow tube 34 runs downward from a point 35 near the top of level tank 18 to prevent the level therein from exceeding a desired maximum. Tube 34 conducts the over- 7 22 is connected to pipe 24, so that if valve 31 is open, 'fuel will'flow by gravity from supply tank 12 and fill measuring tank 16, rising in the vent tube 32 to the same level as exists in supply tank 13. When the valve plug is turned to the position shown in FIGURE 3, pipe 24 will'be connected to pipe 26, so that all of the fuel a in the measuring tank 16 will flow by gravity intolevel tank 18, filling it to a level 36 as shown in FIGURE 4. The incinerator has a casing composed of a base 37, a casing body made of side walls 33, front 39 and back 49, and a casing top 41. The base has two angle brackets 42 welded to it near the front to support the side walls 38 which are flanged inward on the bottom and bolted to brackets 42. The side walls are carried around to the front as shown at 43, then flanged inward at 44 and welded to rearwardly turned flanges 45 on front 39. Back 48 is ofiset at 46 and bolted to the rear flange of the side panels, and also has an outwardly turned bottom flange 46a which is bolted to the base 37.

Insulation 47 is cemented to the inside of the front and side walls. The casing top 41 is flanged downward on its front and sides at 4%, the flanges fitting around the upper portion of the casing body front and side walls. The casing top is supported independently of the casing body as explained later, with a space 49 between the upper end of the casing body and the under side of the casing top to provide for the difference in expansion in a vertical direction of the parts when they are heated.

Within the casing is a container 50 within which waste material is incinerated. The container has a bottom 51, a cylindrical shell '52 and a container top 53. Cylindrical shell 52 may be lined with fL-"ebricks 54 shaped as sectors of a hollow cylinder. The firebricks protect the shell from the heat produced by the combustion of the waste material, and are held in place against the shell by lugs 55 welded to bottom 51 and top 53. 1

Within and at the rear of container 51! is a cylindrical oil combustion charnber 56 Within which fuel oil burns when the incinerator is in operation. Chamber 56 is composed of a cylindrical lower shell 58 which has a rectangular opening 61) on the side facing the center of container 50, a cylindrical upper shell 62, a frusto-conical bottom 64 and a flanged top 66 having a central hole 68. The'lower end 69 of shell 58 extends through a hole in the bottom 51 of the container for a short distance and is weldedrto the bottom 51. Flanged top 66 is spotwelded to the under side of container top 53 but not fastened .to upper shell 62 to permit differential expansion of the parts.

Opening is covered'by a coarse screen 71) made of wire or expanded heat-resistant metal. This screen prevents material which is to be incinerated from entering the oil combustion chamber.

Container bottom 51 has a large circular hole '72 forward of shell 58 and two small circular holes 74, one at each side of the center of bottom 51, to admit air for combustion of the waste material and permit ashes to fall through to an ash pan 76 below. A dump grate 78 made of welded rods is within hole 72 and supports the Waste material above it. The grate is pivoted on a center rod 80 journaled in holes Sila and 80b in front 39 and shell 58, respectively. The grate has two side rods 80c parallel to rod 80 and five cross rods 89d which tie the center and side rods together. A handle 82 is provided in front of the'incinerator, by means of which the grate can be rotated to dump unburnable material into the ash pan. One cross rod 84 is made longer than the The center of gravity of this rod is located to 4 84 and since rod 84 is assembled above bottom 51, its weight will hold the grate in a horizontal position. 7 Ash pan 76 is an open-top rectangular pan which rests on two angle rails 86. The pan extends fromiust forward of combustion chamber 56 to the front of the incinerator. Casing front 39 ends just above the'front of the pan, leaving an opening below, through which the pan can be removed to empty the ashes. A front plate 88,

' provided with a pull handle 90, is attached to pan 76 by two'straps 92, welded to the plate and pan. covers the opening below front 42 when, the pan is in place in the incincerator.

7 Container Si] is supported on four angle-iron legs 94, each of which has a foot 96 formed outward at the lower end and screwed to base 37. The upper ends of the legs are welded to cylindrical shell 52.

Casing top 41 has a large rectangular opening 93 toward its front edge, while container top 53 has a slightly smaller opening 1% below it. The incinerator is loaded through these openings. Four channels 102, one welded on each side of opening 98 space and support casing top 44 from container top 53, to which they are attached by screws (not shown). g

A rectangular charging door 164 is slightly larger than opening 93 which it covers when closed. This door is hinged at 1% and may be opened or closed by means of knob 10S, riveted to it. Projecting below door 164 are four pins 11%, one near each corner. These pins serve as guides for an inner cover 112 made of heat-resistant material which fits loosely within the space enclosed by the four channels, and rests on container top 53 when door 164 is closed. Pins have heads spaced a short distance below inner cover 112, so that when the door 164 is opened, inner cover 112 will be carried with it. Springs 114 hold the door and cover apart. When closed, the weight of door 104 will compress the springs, so that both the inner cover and outer door will be seated.

A round hole 116 in container top 53 and a slightly larger round hole 118 in casing top 41 directly above it are axially aligned with hole 68 in flanged top 66. A square lighting door 120 hinged at 122 and provided with a knob 124 attached at its center covers hole 118. Ex-

tending below knob 124 is a pin 126 which pro iects through a hole slightly larger than the pin in a circular inner cover 128. This cover is larger than hole 116 but smaller than hole 118. A nut 13% is threaded on to pin 126 a short distance below cover 128, and will lift the inner cover when the lighting door is opened. A spring 132 holds door 129 and inner cover 128 apart, the weight of the door being sulh cient to compress the spring when the door is closed, so that both door 120 and cover 128 will be seated. V

. A draft box 134 (FIGS. 4 and 7) extends through rectangular openings in the upper rear of cylindrical shell 52 and combustion chamber shells 58 and 62 to the center of the combustion chamber. It is attached to outturned flanges 136 of shell 52 by rivets 138. Draft box 134 has a top 140, bottom 142, outer end 144, leftside 146, and right side 148, all rectangular. The top and bottom have semicircular openings and 152 respectively, both axially aligned with holes 68 and 116.

A six inch flue collar 154' projects upwardly through a hole in draft box top 140. Flue pipe 14 fits over this collar and connects it with a flue or chimney which provides draft for removing combustion products and drawing in combustion air. If desired, a mechanical draft fan can be used to provide draft.

A barometric draft regulator damper 156 fits into a six inch hole in right side 148. This damper is a commercial product and of itself forms no part of this invention. It consists of a retaining ring 158 in which a circular blade 160 is pivotally mounted, freeto swing and balanced to be closed when there is no draft, but to swing open and admit air when there is a predetermined draft inside of the box. This air dilutes products'of combus- Plate 88 r tion, thus reducing the draft from that which would exist without the draft regulator, maintaining a fairly constant draft during combustion. The entering air is fed to the flame at the top of the combustion chamber.

A sloping plate 162 divides the draft box and causes air entering through the draft regulator to flow into the upper part of chamber 56 before it passes out of the flue. A screen 164 extends from the end of plate 162 to the draft box top wall 140 to prevent fly ash from burning waste material from entering the flue.

Attached to the lower end 69 of the oil combustion chamber shell is a vaporizing oil burner pot designated generally by number 165. This is a conventional burner pot and by itself forms no part of the invention. It includes a fuel sump 166, a cylindrical sleeve 168 which is pierced by numerous primary air holes 170, a throat 172, a separator 174 which spaces the sleeve 168 and throat 172 apart to form a secondary air slot 176, a housing 178 and a housing bottom 180 which has an air inlet hole 132; all held together by three rods 184, welded to sleeve 168 and pass ng through holes in throat 172, separator 174, sump 165 and bottom 180. Each rod has nuts threaded on each end and a spacer 185 between sump 1:56 and bottom 180.

A fuel inlet pipe 186 connects the sump to the lower part of level tank 18, so that the fuel stands at the same level in the sump as in the level tank.

Burner pot 165 is attached to lower end 69 of the oil combustion chamber shell by three circumferentially spaced screws 188.

In the oil combustion chamber above bottom 64 is a plate 190, sloped upwardly toward the front at an angle of degrees. This plate divides the flame traveling upward from the burner pot in the combustion chamber as shown in FIGURE 4, so that the flame in the front half of the chamber is directed into the waste material to ignite it, while the rest of the flame is carried to the top of the chamber.

Operation The incinerator is used in the following way:

Material to be incinerated is placed in container through opening 98 after the charging door 184 is opened by means of handle 108. The charging door is then closed.

Fuel (#1 fuel oil or kerosene) is contained in tank 12. Valve handle 28 is turned so that the valve plug 30 is in the position shown in FIGURE 2, causing measuring tank 16 to fill with fuel flowing from tank 12. After a few seconds needed for the tank to fill, handle 28 is turned degrees, so that the valve plug assumes the position shown in FIG. 3. The contents of tank 15 will then flow into level tank 18 and burner sump 166. Tank 18 is shallow, is at the same elevation as sump 165 and has a horizontal area great enough so that when this oil has been delivered thereto, the oil level in sump 166 will not exceed a safe height or depth.

Lighting door or closure is then opened by means of handle 124. A lighted wad of paper dropped into lighting opening hole 118 will fall into sump 166, being guided thereto by plate 190 and cone-shaped bottom 64, and will then ignite the fuel. Lighting door 120 is then closed.

Heat of combustion vaporizes the oil, the vapor rising and mixing with primary air entering through holes 170. At first most of the combustion is in the burner pot 154, but as it warms up and more vapor is evolved, there will be little or no flame up to the point where secondary air (entering through slot 176) mixes with the vapor in throat 172. Above the throat, as added heat vaporizes more of the oil, the flame gradually increases in size until the combustion becomes stabilized, when the flame will appear about as shown in FIG. 4.

As the fuel in the sump is consumed, additional fuel 5 will flow in from tank 18, until all of the fuel therein has been consumed, whereupon the fire will go out.

Plate 191? splits the flame so that part of it passes through opening 60 and screen 70. Heat from combustion of the oil warms and dries out the material to be incinerated, while flame passing through screen 70 ignites it. Air for the combustion of the combustible part of the material to be incinerated enters around the base 37 and around the draft regulator box, as shown by the broken arrows in FIGURE 4, then passes through opening 72 and 74 into container 50.

Products of combustion from the burning oil and from the burning material in container 50 are pulled out by the draft in the flue through collar 154. As soon as the draft for which the regulator is set (normally .06 to .10 inch water column) is reached, the draft regulator blade 16% wfll swing open, admitting air which lowers the line temperature and maintains the draft at the value for which the regulator has been set. Air entering through the draft regulator 156 meets the products of combustion near screen 164 so that the oil flame on the top of combustion chamber 56 and the red hot screen 164 completes combustion of any unburned or partlyburned products, part of the air entering through the draft regulator 160 thus serving as tertiary combustion air for the combustion of the oil and secondary air for the combustion of burnable material in the products being incinerated.

The combination of the high temperature produced by the burning oil, the supply of air entering through the draft regulator and the thorough mixing of the smoke and fumes from the incineration with the air at the heated zone cause the combustion to be completed and the smoke md fumes to be consumed before the gases pass through screen 164 and enter the flue pipe.

The oil continues to burn until it has all been consumed by which time incineration should be complete. A single charge from the measuring tank would normally be one quart of oil, which produces when it burns about 35,000 Btu. This oil will be consumed in about one hour and will incinerate a normal load of refuse. If the load contains an unusual amount of wet garbage, a double operation of the three-Way valve will allow a double amount of fuel to enter the leveling tank, producing about 70,000 Btu. in about tWo hours. The level tank has suflicient capacity for such double operation of the valve without raising the oil level above a safe maximum. Added operations of the valve would result in overflow of the fuel through tube 34 preventing any possibility of attainment of an unsafe level of oil in the burner.

The incinerator covered by this invention may be made in many different forms and the construction described above is illustrative of the preferred form. Many modifications could be made by those skilled in the art without departing from the concept of the invention as expressed in the following claims.

I claim:

1. In an oil-fired incinerator for periodically incinerating Waste material by means of heat produced by burning oil,

(a) a container in which the waste material is placed for incineration,

(b) a pot-type oil burner having a combustion chamber, the interior of which is in communication with the interior of said container,

(0) means for supplying substantially the same measured quantity of oil to the burner for each waste material charge to be incinerated, and

(d) a flue in communication with the combustion chamber and container to carry away products of combustion of the oil and from the incineration of the Waste material.

2. The combination claimed in claim 1, with (a) said burner having a sump in which oil is Vaporized,

aisles:

' (b) a lighting opening in the top of the Combustion chamber in vertical alignment With the sump, and ('c) a closure for said lighting opening.

' 3. The combination'claimed in claim 2, with means for guiding a lighted wad of paper-introduced through said opening so that it will fall into the sump. V 4; In an oil burning incinerator for periodically incinerating waste material by means of heat produced by burning oil, v V 1 (a) a container for holding waste material to be incinerated, V

(b) a pot-type oil burner for burning a predetermined quantity of oil each time the waste material is to be incinerated,

(c) said burner including'a sump into which said oil is introduced for burning in said burner and a wall containing openings through its thickness at an elevation above said sump, V

(d) a shallow fuel level tank at the same elevation as the aforesaid sump and in communication therewith so that oil introduced into said fuel level tank ill flow into said sump and attain the same level therein as in the fuel level tank, and V 2) flow control means for causing the aforesaid predetermined quantity of oil to flow by gravity into the fuel level tank prior to the time the waste material is to be incinerated, V

(f) said fuel level tank having a horizontal area great enough so that when said predetermined quantity of oil has been delivered thereto, the oil level-in the sump willbe below said openings.

5. In an oil burning incinerator for periodically in. 'ciner'ating waste material by means of heat produced by burning oil,

(a) a container for holding waste material to be incinerated, a

(b) a pot-type oil burner for burning a predetermined volume of oil each time the waste material is to be incinerated,

(c) said burner including a sump for receiving said oil for burning in said burner,

(d) a shallow fuel level tank at the same elevation as the aforesaid sump and in communication therewith so that oil introduced into said fuel level tank will flow into the sump and attain the same level therein as in the fuel level tank,

(e) valve means located above the fuel level tank and connected thereto by a first conduit,

(f) a measuring tank located at an elevation above said valve means and having a volumeequal to the aforesaid predetermined volume of oil,

(g) a second'conduit which connects the bottom of said measuring tank with said valve means,

(11) a supply tank located at an elevation above said measuring tank and holding a volume of oil in excess of the volume of said measuring tank,

(1) a third conduit connecting said supply tank with said valve means, and V (j) a vent means connecting the top of the measuring tank'with the atmosphere at an elevation above the top of the supply tank.

6. The combination claimed in claim 5, with (a) said burner including a Wall containing openings through its thickness at an elevation above said sump,

(12) operating means for selectively positioning said valve means in either a firstor second position,

() said valve means including (1) means connecting in said first position said second and third conduits so that oil can flow from said supply tank to fill said measuring tank, and

(2) means connecting in said second position said first and second conduits to provide communication between sa'd measuring tank and level g tank so that oil can flow from said measuring tank into said level tank and sump, (d) said openings being located entirely above the maximum level attained by the oil in said sump. 7. The combination claimed in claim 6, in which the valve means is a three-way valve havinga plug containing a passageway and movable between saidisecond position in which said passageway connects the first conduit to the second conduit and said first position in which saidjpa'ssage-way connects the second conduit to the third conduit.

8. In an oil-fired incinerator for periodically incinerating waste material by means of heat produced by the 'combustion of oil,

(a) a container for holding waste material, said con tainer having a bottom grate'on which said material is placed, I

(b) an ashpit below said grate in communication with said container and with the outside atmosphere,

(0) a pot-type oil burner incorporating a burner port and a combustion chamber,

(d) said pot including a side wall and a bottom oil sump, said side Wall having primary and secondary air admitting openings above said sump,

v (e) means for supplying a prerneasured amount or oil to said sump for combustion in said burner each time materialis to be incinerated,

(,f) a jacket surrounding and spaced from said wall to form a compartment around said pot, said jacket having an opening through its thickness, said opening placing said compartment in communication with the outside atmosphere, said jacket shielding said pot from heat emitted by burning waste material and preventing entry into the burner of products of combustion from the ashpit and ashes falling throughsaid grate,

(g) a flue in communication with said combustion chamber and with the outside atmosphere for venting products of combustion from said combustion chamber, said flue providing suiiicient draft for causing all air required for complete. combustion of the oil and waste material to flow into said incinerator andburner,

(h) said combustion chamber including a wall with an 1 opening therethrough, said opening providing communication between said chamber-and said container, and

i (1') means for directing at least part of the flame produced by combustionof the oil through said lastmentioned opening into said container for igniting combustible material therein.

9. The combination claimed in claim 8, with an air conduit connecting the interior of said, combustion chamher with the outside atmosphere for drawing air through said conduit by said draft for providing tertiary air for completing the combustion of unburned combustibles passing from said container through said chamber to the flue.

10. The combination claimed in claim 8, with (a) a lighting opening at the top of said combustion chamber, 7

, (b) a closure for said lighting opening, and

(0) means for guiding a lighted combustible dropped through said opening to fall into said sump.

11. In an oil burning incinerator for periodically incinerating waste material bymeans of heat produced from (d) a measuring tank located above said sump and having a size completely filled by said predetermined volume of oil,

(e) a fuel supply tank located at an elevation above said measuring tank,

(1) a vent pipe venting the top of said measuring tank to the atmosphere at an elevation above the highest fuel level in said supply tank, and

(g) valve means selectively connecting the bottom of said measuring tank either to the outlet of said supply tank so that the measuring tank will fill from fuel in the supply tank, or to the sump so that fuel will fioW from said measured tank into said smnp,

(It) said air admitting openings being above the maximum fuel level in said sump when the measuring tank is emptied into said sump.

12. In an oil-fired incinerator for periodically incinerating waste material by means of heat produced by burning oil,

(a) a container having a bottom grate on which the waste material is placed for incineration,

(b) a pot-type oil burner having a combustion chamber, the interior of which is in communication with the interior of said container at an elevation above the level of said grate,

() means for causing a premeasured volume of oil to flow by gravity to the burner whenever the waste material is to be incinerated, and

(d) a flue in communication with the combustion chamber and container for carrying away products of combustion of the oil and from the incineration of the waste material, said flue constructed for providing the necessary draft to induce flow into said container and burner or" all air required for complete comhustion of the oil and of the combustibles in the container.

13. In an incinerator, as set forth in claim 4, with (a) said flow control means including selection means for selectively directing a single or a double charge into said tank prior to incineration,

(b) said tank and sump being dimensioned to burn properly either said single charge or said double charge and to keep the oil level in said sump below said openings with said double charge.

References Cited in the file of this patent UNITED STATES PATENTS 2,044,035 Laghetto lune 16, 1936 2,201,019 Zotter May 14, 1940 2,519,241 Findley Aug. 15, 1950 2,538,811 Triggs Jan. 23, 1951 2,669,199 Remore Feb. 16, 1954 2,711,139 Martin June 21, 1955 2,739,547 Triggs Mar. 27, 1956 2,854,557 Triggs Sept. 30, 1958 2,925,054 Sherman Feb. 16, 1960 3,043,248 Martin July 10, 1962 3,089,440 Morgan May 14, 1963 

1. IN AN OIL-FIRED INCINERATOR FOR PERIODICALLY INCINERATING WASTE MATERIAL BY MEANS OF HEAT PRODUCED BY BURNING OIL, (A) A CONTAINER IN WHICH THE WASTE MATERIAL IS PLACED FOR INCINERATION, (B) A POT-TYPE OIL BURNER HAVING A COMBUSTION CHAMBER, THE INTERIOR OF WHICH IS IN COMMUNICATION WITH THE INTERIOR OF SAID CONTAINER, (C) MEANS FOR SUPPLYING SUBSTANTIALLY THE SAME MEASURED QUANTITY OF OIL TO THE BURNER FOR EACH WASTE MATERIAL CHARGE TO BE INCINERATED, AND (D) A FLUE IN COMMUNICATION WITH THE COMBUSTION CHAMBER AND CONTAINER TO CARRY AWAY PRODUCTS OF COMBUSTION OF THE OIL AND FROM THE INCINERATION OF THE WASTE MATERIAL. 